domain report

Is skagit.edu a business email?

skagit.edu is an education domain: a school, college or university.

GET /v1/check?domain=skagit.educhecked 18 Oct 2026
isBusinessEmail("skagit.edu")
true

Education domain — a school or university.

category
education
recommendation
allow
confidence
93%
  • Google Workspace: not detected
  • Microsoft 365: detected

Mail setup

Receives mail
Yes
Mail provider
microsoft 365
SPF
v=spf1 include:spf.protection.outlook.com include:spf-na.exlibrisgroup.com include:us._netblocks.mimecast.com include:mbssmtp.mbsbooks.com ip4:134.39.44.185 ip4:134.39.44.146 ip4:134.39.48.214 ip4:134.39.99.247 ip4:134.39.99.249 ip4:207.46.163.138 ip4:207.46.163.170 ip4:207.46.163.215 ip4:204.147.181.199 ip4:107.170.229.32 ip4:52.39.4.253 ip4:64.74.237.230 ip4:64.74.237.231 ip4:167.89.0.0/17 ip4:208.117.48.0/20 ip4:50.31.32.0/19 ip4:198.37.144.0/20 ip4:198.21.0.0/21 ip4:192.254.112.0/20 ip4:168.245.0.0/17 ip4:149.72.0.0/16 ip4:159.183.0.0/16 ip4:223.165.113.0/24 ip4:223.165.115.0/24 ip4:223.165.118.0/23 ip4:223.165.120.0/23 ip6:2a01:111:f400:7eab:0:0:0:71f ip4:198.105.13.131 ip4:67.133.94.131 ip4:13.58.219.195/32 ip4:13.37.84.251/32 ip4:13.58.175.231/32 ip4:34.237.205.19/32 ip4:54.87.108.204/32 ip4:18.188.134.198/32 ip4:35.177.188.31/32 ip4:3.75.117.13/32 ip4:34.195.3.229/32 ip4:18.219.6.37/32 ip4:108.168.203.23/32 ip4:3.97.26.246/32 ip4:52.222.36.182/32 ip4:35.169.190.25/32 ip4:52.23.73.104/32 ip4:18.136.72.214/32 ip4:52.64.190.42/32 ip4:50.97.164.168/32 ip4:18.254.28.218/32 ip4:64.74.237.230/31 ip4:216.147.212.20/30 ip4:74.122.104.0/22 ip4:40.92.0.0/15 ip4:40.107.0.0/16 ip4:52.100.0.0/15 ip4:52.102.0.0/16 ip4:52.103.0.0/17 ip4:104.47.0.0/17 ip6:2a01:111:f400::/48 ip6:2a01:111:f403::/49 ip6:2a01:111:f403:8000::/51 ip6:2a01:111:f403:c000::/51 ip6:2a01:111:f403:f000::/52 ip4:167.89.0.0/17 ip4:168.245.0.0/17 ip4:199.255.192.0/22 ip4:199.127.232.0/22 ip4:54.240.0.0/18 ip4:69.169.224.0/20 ip4:23.249.208.0/20 ip4:23.251.224.0/19 ip4:76.223.176.0/20 ip4:54.240.64.0/18 ip4:76.223.128.0/19 ip4:216.221.160.0/19 ip4:206.55.144.0/20 ip4:24.110.64.0/18 exists:%{i}._spf.mta.salesforce.com include:44880453.spf05.hubspotemail.net ip4:103.151.192.0/23 ip4:185.12.80.0/22 ip4:188.172.128.0/20 ip4:192.161.144.0/20 ip4:216.198.0.0/18 ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 ip4:208.117.49.186 ip4:66.102.0.0/20 ip4:66.249.80.0/20 ip4:72.14.192.0/18 ip4:74.125.0.0/16 ip4:108.177.8.0/21 ip4:173.194.0.0/16 ip4:209.85.128.0/17 ip4:216.58.192.0/19 ip4:216.239.32.0/19 ip6:2001:4860:4000::/36 ip6:2404:6800:4000::/36 ip6:2607:f8b0:4000::/36 ip6:2800:3f0:4000::/36 ip6:2a00:1450:4000::/36 ip6:2c0f:fb50:4000::/36 ip4:172.217.0.0/19 ip4:172.217.32.0/20 ip4:172.217.128.0/19 ip4:172.217.160.0/20 ip4:172.217.192.0/19 ip4:172.253.56.0/21 ip4:172.253.112.0/20 ip4:108.177.96.0/19 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.8.0/21 ip4:209.61.151.0/24 ip4:166.78.68.0/22 ip4:198.61.254.0/23 ip4:192.237.158.0/23 ip4:23.253.182.0/23 ip4:104.130.96.0/28 ip4:146.20.113.0/24 ip4:146.20.191.0/24 ip4:159.135.224.0/20 ip4:69.72.32.0/20 ip4:104.130.122.0/23 ip4:146.20.112.0/26 ip4:161.38.192.0/20 ip4:143.55.224.0/21 ip4:143.55.232.0/22 ip4:159.112.240.0/20 ip4:198.244.48.0/20 ip4:204.220.168.0/21 ip4:204.220.176.0/20 ip4:141.193.32.0/23 ip4:159.135.140.80/29 ip4:159.135.132.128/25 ip4:161.38.204.0/22 ip4:87.253.232.0/21 ip4:185.189.236.0/22 ip4:185.211.120.0/22 ip4:185.250.236.0/22 ip4:143.55.236.0/22 ip4:198.244.60.0/22 ip4:204.220.160.0/21 ip4:199.255.192.0/22 ip4:199.127.232.0/22 ip4:54.240.0.0/18 ip4:69.169.224.0/20 ip4:23.249.208.0/20 ip4:23.251.224.0/19 ip4:76.223.176.0/20 ip4:54.240.64.0/18 ip4:76.223.128.0/19 ip4:216.221.160.0/19 ip4:206.55.144.0/20 ip4:24.110.64.0/18 ip4:198.105.13.131 ip4:134.39.2.200 ip4:34.215.105.93 ip4:134.39.2.75 -all
DMARC policy
quarantine
MX records for skagit.edu
PriorityMX host
0skagit-edu.mail.protection.outlook.com
10skagit-mail-onmicrosoft-com.mail.protection.outlook.com
20mailman3.skagit.edu
40mailman.skagit.edu

Workspace

  • Google WorkspaceNot detected
  • Microsoft 365Detected · region NA · managed sign-in

Detected per company domain from public DNS and Microsoft's documented tenant discovery — never per person.

Why this verdict

Confidence 93% · recommendation allow under the default b2b policy.

What this means

Addresses at skagit.edu belong to an institution's own domain, so isBusinessEmail treats them as organizational: is_business is true and the recommendation is allow under every policy. It is on our education domains list.

Students and staff use these addresses, which makes them useful for academic discounts and verification. skagit.edu receives mail through skagit-edu.mail.protection.outlook.com, skagit-mail-onmicrosoft-com.mail.protection.outlook.com, mailman3.skagit.edu and more.

See the full education domains list →

Questions about skagit.edu

Is skagit.edu a business email?

It is an organizational email on an education domain. isBusinessEmail returns category "education" with is_business: true.

Can I use skagit.edu to verify students?

An address on an education domain shows the person has an account at the institution, which many companies accept for student discounts. Alumni and staff may have one too.

Should I allow skagit.edu sign-ups?

isBusinessEmail recommends allow for education domains under the b2b, strict and lenient policies.

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